Oregon 70503/80503 3/16-Inch Chain Saw File Swiss double-cut file design with precision cutting-tooth and fewer teeth per inch than competitive files Precision centerless grind Uniform file diameter and tooth height Tang length is uniform; no burrs nor sharp edges State-of-the-art manufacturing processes; uniform, optimum hardening, high-quality finishing, including sandblasting and demagnetizing Premium-quality file 3/16-inch file size